Stamp



0. B. P lCKERlNG.

STAMP.

APPLICATION FILED OCT.- 26, I921.

H E 9F. 11H 1% Van.. Mn J &2 w m a D1 l/VI/E/VTOR U.Pz'cifern WITNESSES A TTORIVEYO 0. B. PICKERING.

- STAMP.

APPLICATION FILED 00L 26, 1921.

Patented July 11, 1922.

2 SHEETS-SHEET Z.

E w \M W ,4 TTORA/EYS vice,

onrnn BYRON EICKERING, or nnnrcor'r, NEW-YORK.

1 STAMP.

Macaw;

Specification of Letters Patent.

Patented July 11, 1922.

Application filed. October 26, 1921. Serial No. 510,558.

To all whom it may concern:

Be it known that 1, Oman BYRON PIOKER- ING, a citizen of the United States, and a resident of Endicott, in the county of Broome and State of New York, have invented certain new and useful Improvements in Stamps, of which the following is a specification.

My invention relates to improvements in stamping machines of the type of construe tion in which a die carrying hammer 1S operatively supported in a desired position with respect to a work-supporting member, and it consists in the combinations, constructions and arrangements herein described and claimed. i

- An object of my invention is to provide a stamp of the character described, in which a die-carrying hammer is adjustably sup ported, whereby the device is suitable for use in stamping fiat pieces of work, such as "hides and pieces 'of leather, which vary in thickness. V

A further object of my invention is to provide a device of the character described having means for stamping and counting pieces of work at the same operation.f

A still further object of my inventlon 1s to providea' device of the character described-in which the parts contacting the work are made of a non-ferrous material suitable to withstand the chemical action and the general wet nature of the work without deterioration.

A still further object of my invention is to provide a device of the character de scribed that is simple in construction,'not likely to get "out of order easily, and

thoroughly effective for the purpose intended. r v

Otherobjects and advantages will appear in the following specification and the novel featuresjofth'einvention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying-drawings, forming a part of this -ap licatiomin which:

igure 1 is a perspective view of the de Figure 2 is'an end view of the same, porvtions thereof being broken away "and other portions being shown in section, Figure 3 is a side elevation of the device,

upper tie bars 6 and 5, respectively.

and

Figure 6 is a view similar to Figure 2 of a fragmentary port-ion of the mechanism shown in the latter.

In carrying out my invention, I provide a supporting frame which embodies inc-lined legs arranged in pairs 11 and 22. Corresponding legs of the pairs are joined at the1r upper ends by cross bars 3 and i re spectlvely. The legs 22 are connected and held in spaced apart relation through the agency of an upper tiebar 5 and a lower tie bar 6, whereby the cross bars 3 and 4: will be held clamped against opposite faces of the web of an I bar 7. The latter serves as an anvil for the device, as will presently appear.

A; standard 8 is supported in upright position by means of brackets 9 and 10, which are shown as being attached to the lower and The standard 8, which is shown as a channel iron, is formed with a vertically extending slot 11 therein beginning at about the level of the upper base of the anvil 7 The slot 11 opens through the sides of the standard 8, which sides extend at right angles to the anvil 7 and the slot is therefore parallel with the anvil 7. i A hammer adjustablysupported on the standard 8 by means which will be hereinafter described, comprises a diecarrying head 12 held on the outer end of a handle 13. The latter is arranged with its inner end held within the tubular arm 14 of a handle holder which also embodies a body portion 15 (see Fig.5). It is to be observed that the tubular portion 14: of the holder is merged into the body portion 15 intermedi ately of the latter and that the holder is therefore substantially T-shaped. The body portion 15 of the holder is provided with an axial bore 16, in which is received a short shaft 17. The ends of the latter project into alined openings 18 and 19 in the arms 20 and 21 respectively of an adjustable bracket 22, which is slidably disposed on the slotted portion of the standard 8 and is maintained thereon for slidable movement by the engagement of the inturned extremities 23 and 24:, respectively, of the arms 20 and 21 with the standard 8. It will thus be manifest ard 8 before engaging the arms of the adjustable bracket 22, whereby the extent of movement of the adjustable bracket 22 is limited to the length of the slot 11.

The handle holder is formed with an integral flange 25 which depends from the under side of the tubular portion 1 1 when the holder is supported by the bracket 22, as illustrated. A link 26 is pivotally attached at its upper end to the flange 25 adjacent to the forward end of the latter and is pivotally attached at its lower end to a treadle'27 intermediately of the latter. The treadle 27 is fulcrumed at one end, as at 28, on the standard 8. A retractile spring 29 attached at one end to the treadle 27 and at its other end to the standard 8 at a point slightly below the lower end of the slot 11, as at 30, exerts a tension on the treadle 27 which tends to maintain it in the position hammer embodied in the device and deillustrated in Figure 2.

Anumbering or counting device, which may be of any suitable known type of construction, is shown diagrammatically as bein attached to the standard 8 at the upper en of the latter. In the drawings, I have indicated a numbering device in general, at 31. A lever and link arrangement indicated generally at 32 operatively connects the flange 25 of the handle holder with the numbering device 31.

From the foregoing description of the various parts of the device, the operation thereof will be readily'understood. The device is designed particularly for use in stamping andcounting hides and pieces of leather 1n tanneries. In the form of the device illustrated, the head 12 is designed to carry two separate dies, indicated at 33 and 34 respectively and a like number of face plates 35 are secured upon the upper face of the anvil 7 to receive the impact of a hammer blow. The hammer head 12, thehandle holder, and the adjustable bracket 22 are all formed of a non-ferrous material, which is suitable to withstand the action ofthe chemicals and other liquids with which articles of work of the character described are impregnated, The face plates 35 are formed of copper or other relatively soft material so that the dies will not be injured in the event that the force of the blow is sufficient to force the same completely through the work.

, In service, an article to be stamped and counted, indicated at 36, is superposed on the face plates 35. Foot pressure upon the treadle 27 will then cause the hammer head 12 to be forced downwardly against the tension of the spring 29. The faces of the dies 33 and '34, hearing desired characters, not

shown, will contact the portions of the article 36 superposed directly upon the face plates35,whereby each of the dies will make 1 ,aeaeva the desired impression on the work. Upon the downward stroke of the hammer, the lever and link mechanism, indicated at 32, will be actuated .and the'piece of work stamped will be counted through the agency of the numbering mechanism 31. l Vhen the pressure upon the treadle 27 is removed, the action of the retractile spring 29 will occasion the return of both the treadle 27 and the hammer 12 to the positions illustrated in Figure 2, the hammer moving from the position illustrated in Figure 6.

A recoil block 37 formed of rubber or a like resilient material is attached to the standard 8 by bolts 38in position to receive the impact of the hammer handle at the end limits of the slot 11 and secured in adjusted position through the agency of set screws 39. It will therefore be manifest that the scribed herein may be adjusted vertically so that the faces of the dies will contact the surfaces of pieces .of work of different thicknesses uniformly and evenly. In other words the faces of the dies 33 and 34 will be parallel with the faces of the face plates 35 when the hammer is at the end of its down stroke.

I claim: Y

1.'A device of the character described comprising a vertical standard having a vertically extending slot "formed therethrough, a hammer comprising a handle and a head secured on the handle at one end thereof, said head being adapted to'hold a die in such manner that the face of the die will be disposed in a horizontal planewhen the handle is horizontal, a holder receiving the other end of said handle, bracket having arms straddling the slotted portion of the standard and being movable vertically on the standard, means engaging the said holder, the said slot of the standard, and the said arm of the bracket for pivotally attaching the hammer to the said bracket and for guiding the bracket in its vertical movement, whereby the bracket may be adjusted to permit of the hammer handle occupying different horizontal planes when in dropped position, and an anvil having a face lying in a horizontal plane and in position to receive the impact of a die carried by'the said hammer head. i

2. In combination, a vertical standard of channel formation and having registering vertically extending slots formed through the sides thereof, a hammer having a handle and a head adapted to holda diein such manner that the face ofthe die will be disbore and a tubular portion extending at right angles from the body intermediately of the latter, said tubular portion receiving the end of the hammer handle remote from the head, a substantially U-shaped bracket slidingly embracing the standard and having openingsthrough its sides in registry with each other and with the slots of the standard, a shaft projected through the said registering openings and slots, whereby the holder is supported on the standard in such manner as to permit of limited movements thereof vertically, means for releasably 1ocking the bracket to the standard in desired vertically adjusted positions, and an anvil having a face lying in a horizontal plane and in position to receive the impact of a die carried by the said hammer head.

3. In a device of the characterdescribed, a support having a guide slot formed therethrough, a bracket slidingly embracing the slotted portion of the support, means car ried by said bracket and engaging the guide slot to limit the movements of the bracket along said support, and means swingingly supported upon said bracket for holding a die.

l. In a device of the character described, an elongated support, a bracket slidingly embracing the support, means carried by the bracket for releasably locking the latter to the support in desired positions therealong, and a hammer pivotally supported upon said bracket, said hammer having a head adapted to hold a die.

5. In a device of the character described, an elongated support having a vertical guide slot formed therein, a bracket slidingly embracing the slotted portion of the support, means for releasably locking the bracket to the support in adjusted positions therealong, a hammer comprising a handle and a head secured on the handle at one end thereof, said head being adapted to hold a die, a holder receiving said handle, and means adjacent the said holder, the slot of the support, and the bracket for pivotally attaching the holder to the bracket and for guiding the bracket in its movements along the support.

6. In a device of the character described, a vertical standard, a bracket slidably engaging the standard, means for releasably locking the bracket to the standard in adjusted positions therealong, a holder pivotally supported upon said bracket and having a tubular portion extending laterally thereof, and a hammer having a handle held at one end in the tubular portion of said holder and being provided at its other end With a head adapted to hold a die.

ORIEN BYRON PICKERING. 

